package com.google.zxing.qrcode.decoder;
-import com.google.zxing.ReaderException;
-
/**
* <p>See ISO 18004:2006, 6.4.1, Tables 2 and 3. This enum encapsulates the various modes in which
* data can be encoded to bits in the QR code standard.</p>
*
- * @author srowen@google.com (Sean Owen)
+ * @author Sean Owen
*/
-final class Mode {
+public final class Mode {
// No, we can't use an enum here. J2ME doesn't support it.
- static final Mode TERMINATOR = new Mode(new int[]{0, 0, 0}); // Not really a mode...
- static final Mode NUMERIC = new Mode(new int[]{10, 12, 14});
- static final Mode ALPHANUMERIC = new Mode(new int[]{9, 11, 13});
- static final Mode BYTE = new Mode(new int[]{8, 16, 16});
- static final Mode ECI = new Mode(null); // character counts don't apply
- static final Mode KANJI = new Mode(new int[]{8, 10, 12});
+ public static final Mode TERMINATOR = new Mode(new int[]{0, 0, 0}, 0x00, "TERMINATOR"); // Not really a mode...
+ public static final Mode NUMERIC = new Mode(new int[]{10, 12, 14}, 0x01, "NUMERIC");
+ public static final Mode ALPHANUMERIC = new Mode(new int[]{9, 11, 13}, 0x02, "ALPHANUMERIC");
+ public static final Mode STRUCTURED_APPEND = new Mode(new int[]{0, 0, 0}, 0x03, "STRUCTURED_APPEND"); // Not supported
+ public static final Mode BYTE = new Mode(new int[]{8, 16, 16}, 0x04, "BYTE");
+ public static final Mode ECI = new Mode(null, 0x07, "ECI"); // character counts don't apply
+ public static final Mode KANJI = new Mode(new int[]{8, 10, 12}, 0x08, "KANJI");
+ public static final Mode FNC1_FIRST_POSITION = new Mode(null, 0x05, "FNC1_FIRST_POSITION");
+ public static final Mode FNC1_SECOND_POSITION = new Mode(null, 0x09, "FNC1_SECOND_POSITION");
private final int[] characterCountBitsForVersions;
+ private final int bits;
+ private final String name;
- private Mode(int[] characterCountBitsForVersions) {
+ private Mode(int[] characterCountBitsForVersions, int bits, String name) {
this.characterCountBitsForVersions = characterCountBitsForVersions;
+ this.bits = bits;
+ this.name = name;
}
/**
* @param bits four bits encoding a QR Code data mode
* @return {@link Mode} encoded by these bits
- * @throws ReaderException if bits do not correspond to a known mode
+ * @throws IllegalArgumentException if bits do not correspond to a known mode
*/
- static Mode forBits(int bits) throws ReaderException {
+ public static Mode forBits(int bits) {
switch (bits) {
case 0x0:
return TERMINATOR;
return NUMERIC;
case 0x2:
return ALPHANUMERIC;
+ case 0x3:
+ return STRUCTURED_APPEND;
case 0x4:
return BYTE;
+ case 0x5:
+ return FNC1_FIRST_POSITION;
case 0x7:
return ECI;
case 0x8:
return KANJI;
+ case 0x9:
+ return FNC1_SECOND_POSITION;
default:
- throw new ReaderException("Illegal mode bits: " + bits);
+ throw new IllegalArgumentException();
}
}
* @return number of bits used, in this QR Code symbol {@link Version}, to encode the
* count of characters that will follow encoded in this {@link Mode}
*/
- int getCharacterCountBits(Version version) {
- if (this.equals(ECI)) {
- throw new IllegalArgumentException("Character count doesn't apply to ECI mode");
+ public int getCharacterCountBits(Version version) {
+ if (characterCountBitsForVersions == null) {
+ throw new IllegalArgumentException("Character count doesn't apply to this mode");
}
int number = version.getVersionNumber();
int offset;
return characterCountBitsForVersions[offset];
}
+ public int getBits() {
+ return bits;
+ }
+
+ public String getName() {
+ return name;
+ }
+
+ public String toString() {
+ return name;
+ }
+
}